Trigger mechanism for guns



(.No Model.) 2 Sheets-Sheet 1v. B. R. JOLLY. TRIGGER MEGHANSM FOR GUNS.

No. 383,814. latented May 29,1888.

WITNESSES, @if O6, @MW/ (Il In, M

'(NO Modem 2 sheets-sheet 2. B. R. JOLLY. TRIGGER MBGHANISM FOR GUNS.

No. 888,814. 888811888 May 29, 1888.

WIATJVESSES- Y NITED STATES PATENT OFFICE.

BFNJAMIN R.. Joni-JY, or RALEIGH, NORTH oARoLiNA.

T-RIGGER MECHANISM FOR GUNS.

SPECIFICATION forming part of Letters Patent No. 383,814, dated May 29,1888.

Application tiled October 17, 1887. Serial No. 252,621. (No model.)

To aZZ whom t may concern:

Be itknown that l, BENJAMIN R. J oLLY, a citizen of the United States,residing at Raleigh,in the county ofVake and State ofNorth Carolina,have invented a new and useful Improvement in Double Shotguns, of whichthe following is a specification.

This invention relates togun-locks,cspecially for double-barreled guns.

The invention consists in a combination of mechanism by which a sidetriggerl is made to tire the locks of a double-barreled gun alternately,or to tire the gun by the use of one hammer successively; also in amechanism for unlocking the barrels.

In shooting with double-barreled guns the sportsman is apt to fire onebarrel repeatedly, neglecting the other barrel, so that the gun ispractically worn out while one barrel has been but little used. By mydevice any inattention in this matter is corrected, and t'hebarrels arefired alternately, the trigger setting itself au tomatically, unless itis desired to tire one barrel repeatedly, leaving the other unused, whenit is in the power of the gunner to do so.

In the drawings, Figure lis a side elevation, partly in sect-ion, of thebot-torn strap ofa gun, having a trigger mechanism and barrel-lockingdevice attached. Fig. 2 is a cross-section on line :v Fig. 1. Fig. 3 isa detail in perspective. Fig. 4 is a side elevation, part-ly in section,of the trigger and its rocking frame removed from the strap. Fig. 5 is aside elevation, partly in section, of the actuating-frame. Fig. 6 is aperspective of part of the strap and standard. Fig. 7 shows detailshereinafter referred to.

The reference-leiter a indicates the bottom strap of a gun, on which theguard bis earried. The strap has a standard, c, in which the trigger ispivoted at (Z, such being a common construction of guard-strap. Thetrigger e has a bottom plate, f, a front bar, g, and an upwardextension, h, nearly over thetingerpiece z'. The rocking frame k ispivoted between the projections g and h by pins Z Z, eX- tending in lineparallel with the bottom plate, f, ofthe trigger. This frame k may berocked on said pins Z Z from one side to the other, and when rocked'tothe right is in position to engage the sear of the right-hand hammer,and

when rocked to the left the left-hand hammer, on the pulling of thetrigger, the position of the scar being indicated at m in dotted lines,Fig. 1.

The extent of side movementof the rocking frame k is determined by theears c c on the standard c, or by other suitable stops.

The rocking frame 7c has a top bar, k', and end bars, k2 k3, the latterbeing attached to the pivots Z Z. The frame has bearings for a pin, o`which passes through the rear end of bar kl, and has a cam projection,o', at the rear of said bar. A rocking hanger, o', is supported on thepin o. The pin ois free to turn orrock in its bearings in the bars k2k3, but is splined, keyed, or attached by a. polygonal part, o?, t o therocking hanger, so that the hanger r and pin 0 will rock together. Thetop bar of hanger r is perforated longitudinally to receive pin o. (SeeFig. 5.) The hanger r has two lugs or equivalent projections, 1" r2, atits front and rear. A bar, s, is pivoted in a slot at the bottom of thelug r, and extends forward into a slot in the lug r. A spring, t, isinterposed between the pivoted bar s and the top bar of the hanger r,said spring having a tendency to force downthe front end of the barswhere it enters the slot in lug r.

AV shifter and indicator lever, a, extends through a slot in the bottomof the triggerpiece f, said lever being pivoted on apin, a', whichextends lengthwise of the trigger. The upper end of this lever nisperforated and receives the rounded end e' of the bar s, serving as abearing therefor. rlhe lower end of the lever n has a button, if,serving as a shifter to the lever and as an indicator to show whichhammer will be operated on by the trigger. The length of the lever n issuch that when said lever is shifted to a vertical position the springtwill be under tension by reason of the lifting of bar s. The tendency ofthe spring t will thus be to throw the lever and swinging hanger to oneor the other side of the center'. (See Fig. 2.)

The upright u on strap a has an arch, u', in which there is a tongue,u2, extending down vertically from the top. Aspring, lu, extends throughthis slot below the tongue u to press the trigger down. Vhen the triggeris pulled, the cam o,whieh is a segment rounded on its IOC upper face,has' one of its side projections brought into engagement with the lowerend of tongue a2 and is rocked to one side. This rocking of cani o ofcourse rocks pin o, and thls in turn rocks the hanger r, carrying theupper end of lever n to one side with it, and the lower end, n2, oflever n to the other side of 1ts pivot n and compressing the spring t.The cani o' will travel up the slot at one side of the tongue n2, whenthe hanger r is swung in reverse direction, and the finger-piece n willbe on the same side of the central line as the top of the frame k, thusindicating which harnmer is to be operated on by the trigger and whichbarrel will be fired. As the trigger is released from pressure, thespring v will press 1t down, and as soon as the pin o, bearing the camof, comes below the tongue u2 the spring t wi1l,byits expansion, shiftthe top of the frame 7s to the side of the medial line on which thebutton n at that time rests. The movement of the frame 7c is thusalternate, first one side of cam o and then the other being brought intoengagement with tongue u2 as the trigger is successively operated.l/Vhen the indicator is on one side--say the right side-and it isdesired to re the left-hand barrel, it is only necessary to shift thebutton or indicator n2 to the left before pulling the trigger. Thismovement of button n and lever u carries the top of frame k to the leftin position to fire the left-hand barrel.

The parts may be attached together by screws or in other manner usual ingun-locks..

In orderf to bring the operating-lever of a breakdown gun within thetrigger-guard, I employ a construction substantially as shown in Fig. l.In this the barrel-locking bolt A moves lengthwise of the gun, as inmany guns of this class. The locking-bolt A has a mortise, B, (shown indotted lines, Fig. 1,) and one end of the bell-crank lever C enters thismortise. Lever C is pivoted at K tothe strap or to lugs thereon. The endD of lever G is engaged by the front end, E, of lever F, said le ver Fbeing pivoted at L on lugs on the strap. The spring G bears on thebell-crank lever to shoot the bolt forward, and the spring H bears theouter end of lever F forward. Thus a pull on lever F serves to withdrawthelockingbolt, and the springs restore said bolt. The crossbar M has ascrew-threaded hole for the reception of a screw from the top of theframe.

What I claim isl. In a gun-lock, a single trigger, a shifting frameattached to said trigger, an abutment in the gun, and a cam carried bythe shifting frame in position to engage the abutment, and thus shiftthe frame, whereby the frame may be made to engage the sears of a-doublegun alternately, substantiall y as described.

2. In a gun-lock, a trigger, a shifting frame mounted on said triggersoas to be shiftedinto position to engage either of the sears of a doublelock, and an indicator connected to said frame and extending outside thelock, so that the position of the frame may be known.

3. In a gun-lock, a trigger, a frame pivoted thereto so as to be shiftedinto position to en gage either one of two sears, and a linger-piececonnected to the frame and extending to the outside of the lock, so thatthe position of the frame may be changed by pressing on.the inger-pieceand the desired engagement be made by a subsequent pull of the trigger.

4. In a gun-lock, the combination of a trigger, a shifting frame pivotedto said trigger, a hanger in said frame, a pin carrying said hanger andadapted to swing the same, a cam on said pin, and an abutment in thelock with which said cam is brought into engagement on the pulling ofthe trigger.

5. The combination, in agun-lock, of a trigger, a pivoted frame carriedthereby, a hanger in the frame, a lever pivoted to the hanger andextending outside the lock, and a spring operating to press the innerend of said lever to one side of a central position, substantially asdescribed.

6. The combination, in a gun-lock, of a trigger, a rocking frame carriedthereby, a pin ex' tending lengthwise of the frame and having a camthereon, a hanger supported on said pin, and a lever pivoted to saidhanger and to the trigger, and an abutment in the gun in position toengage said cam as thetriggerispulled.

7. In a gun-lock, the combination, with the trigger guard and strap, ofa lever, F, within said guard, a bell-crank lever inside the strap withwhich said lever engages, and a longi- ICO tudinally-Inovinglocking-bolt with which one arm of the bell-crank lever engages,substantially as described.

I5. R. JOLLY.

Witnesses:

RUFUs Uzz Ln, W. T. WooDwARD.

